Published

accordion

vr.tr.accordion · thing-q79838

Enable an AI agent to recognise an accordion, assess its playability and condition, and decide which playing, handling, maintenance or repair actions are appropriate.

Thing Registry Physical world and living systems PHY.OBJ

Bundle → Layer → Finding → Questions Classifiers What it is Why it exists Distinguishing features What robots and AI may and may not do Moral aspects Owners Links to other meta-models Identity and identifiers Direct properties Recognition Capabilities and actions Hazards and failure modes Standards and interfaces Context of use Sources

Bundle → Layer → Finding → Questions Filled

6 bundles · 11 layers · 11 findings · 22 questions

Identity and playing system Establish what kind of accordion this is and which configuration its controls implement.

Instrument classification

Resolve the instrument's identity and its boundary with neighbouring bellows instruments.

Classification evidence

Record markings, construction observations and documentation supporting the accordion classification without inferring a subtype from appearance alone.

What markings, maker records or other evidence identify this instrument and its model? provenance
Which observed features support classification as an accordion rather than a concertina, bandoneon or another bellows instrument? boundary

Control topology

Describe the arrangement and meaning of controls on both sides.

Verified playing layout

Capture treble and bass layouts, direction-dependent mappings and any selectable bass mode.

What treble layout and bass organisation are present, including any mode conversion? definition
Which controls sound differently on push and pull, and how was that mapping verified? measurement

Bellows and expression Represent how bellows movement controls airflow or electronic expression.

Bellows control path

Identify the connection between bellows motion, air controls and musical response.

Airflow or sensing role

Establish whether bellows motion drives reeds, supplies an electronic control signal or serves both functions.

How does bellows motion influence sound in the instrument's current operating mode? definition
Which air-release or resistance controls are present, and how should they be used when repositioning the bellows? action

Bellows integrity

Assess folds, joints, seals and movement without assuming a universal test threshold.

Air retention and travel

Record unintended air loss, binding or visible damage together with the conditions under which it appears.

Under a documented gentle test, what evidence indicates unintended leakage, binding or abnormal resistance? measurement
Do observed fold, corner or joint defects require restricted bellows movement or inspection before playing? action

Voice and registers Describe the available sound resources and distinguish intended voicing from abnormal output.

Sound resource configuration

Identify selectable acoustic voices or electronic sound resources.

Record each available selection and its verified effect, leaving undocumented internal reed arrangements unresolved.

Which register or voice selections are available on each side, and what sounding change does each produce? measurement
What documentation or inspection supports any claimed reed configuration or electronic voice assignment? provenance

Pitch and voicing assessment

Evaluate pitch and combined-voice behaviour against an identified intended configuration.

Intended versus observed voicing

Separate measured deviation or uneven response from deliberate differences between simultaneously sounding voices.

What pitch reference and intended tuning or voicing are documented for this instrument? provenance
What pitch deviations or uneven voice responses occur under stated register, direction and playing conditions? measurement

Playability and fault localisation Assess whether note controls and mode changes produce their expected musical results.

Control and note response

Connect each tested control to its mechanical feel and sounding response.

Response test coverage

Record tested and untested combinations of control, bellows direction and register, including sticking and unintended sound.

Which controls return normally and sound as expected in each tested direction and register? measurement
Where do silent notes, delayed response, sticking controls or sound after release occur? measurement

Fault triage

Use observed patterns to select further checks without presenting an unverified internal cause as established.

Fault evidence and next check

Associate symptoms with plausible control, airflow, voice or electronic paths and an appropriate next inspection.

Does the symptom follow a particular control, direction, register, bass mode or electronic setting? measurement
What further non-invasive check or specialist inspection would distinguish the remaining possible causes? action

Supported use and care Determine how the accordion can be supported, moved and maintained in its observed condition.

Playing and carrying support

Assess straps, attachment points and bellows restraints in relation to the intended handling action.

Support readiness

Record the integrity and fit of installed supports and the documented preparation for carrying.

Are the shoulder straps, bass-hand strap and their attachment points secure and usable where fitted? measurement
How should the bellows and installed supports be arranged before this instrument is lifted or carried? action

Maintenance and operating limits

Connect the specific construction and service history to appropriate care and operating requirements.

Permitted care and service

Identify documented user care, specialist interventions and any electrical requirements for electronic functions.

Which cleaning, storage and service instructions apply to this instrument's materials and sound mechanism? provenance
Which observed defects permit continued use, require restricted use or call for repair before further playing? action
If electronic functions are present, what power source and connection requirements must be satisfied? action

Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.

Reported evidence

Findings from the breadth pass, kept separate from the structural claims.

Kinds and varieties

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

Which of these kinds and varieties hold for the sense of accordion this model covers, and on what evidence? provenance

Classifiers Filled

Family: Thing Registry
Category: Physical world and living systems
Entry kind: thing
Plane: PHY
Domain: PHY.OBJ
Other names and narrower kinds: organetto, elektronium, button accordion, musette, three-row button accordion, four-row button accordion, two-row button accordion, five-row button accordion, six-row button accordion, free bass accordion, one-row button accordion, Magic Organa

What it is Filled

A portable bellows-driven free-reed aerophone whose two reed chests are sounded by expanding and compressing a bellows, with melody and accompaniment selected by button or keyboard manuals.

In scope

Instrument identity and boundaries, including acoustic, electronic or hybrid configuration
Treble and bass control layouts, note mappings and register selections
Bellows, air controls and their relationship to sound production
Reed or electronic sound response and observable playing faults
Playing support, transport preparation and maintenance requirements

Out of scope

Accordion-style user-interface components and other objects named for folding action
Concertinas, bandoneons and other neighbouring bellows instruments as independently classified things
Musical compositions, arrangements and performance rights
The player's technique, health or training programme
External amplifiers, recording systems and carrying cases as independently managed objects

Why it exists Filled

Enable an AI agent to recognise an accordion, assess its playability and condition, and decide which playing, handling, maintenance or repair actions are appropriate.

Distinguishing features Filled

Check for a bellows assembly joining two end bodies with playing controls; a keyboard alone does not establish accordion identity.
Record whether the treble side uses piano keys or buttons, together with the opposite-hand controls; buttons alone do not distinguish an accordion from a concertina or bandoneon.
Use maker identification and the combined control layout, bass organisation and construction to resolve classification against neighbouring bellows instruments.
Determine whether sound comes from air-driven reeds, electronic generation or both; accordion-shaped controls and moving bellows do not establish an acoustic mechanism.
Check whether a control produces the same or a different note on bellows push and pull, and use this with the layout to identify the playing system.

What robots and AI may and may not do Filled

Must not

Damage, modify or sell an accordion without its owner's consent.
Misrepresent the maker, age or condition of an instrument offered for sale.
Advise opening the reed blocks of a valuable instrument without a qualified repairer.

Only with a human decision

Repairs or retuning of historic or valuable instruments.

May

Identify an accordion by its bellows, reed chests and button or piano keyboards.
Help a player with technique, care and tuning arrangements.

Moral aspects Filled

The accordion is central to many folk and popular traditions.
Old instruments carry cultural value tied to their makers and regions.

Who is affected

Players and owners
Folk music communities

Owners Filled

Steward

The person who owns or keeps the instrument.

Links to other meta-models Filled

parent

Q19650003 - registry parent class
Q336767 - registry parent class

What else AI and robots need to interact with it Filled

Sources Filled

Researching - initial
Wikidata item Q79838: accordion - identity and sense of the item
Wikipedia: Accordion - general description of the item

Open questions

Does the registry intend accordion to include fully electronic and hybrid instruments, and where does it place the boundary with neighbouring bellows instruments?
Which authoritative layout references cover the playing systems that this model must recognise, including regional and modified instruments?
What repeatable, non-damaging bellows and response tests are appropriate for different accordion constructions, and what acceptance criteria are justified?
How should intended tuning, combined-reed beating and test-condition effects be represented so that deliberate voicing is not labelled a defect?
Which maker or specialist sources establish construction-specific storage conditions, user-serviceable actions and defects that require stopping use?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q79838/spec.json